long winded, but hopefully an easy question. I started using Randy’s sodium hydroxide recipe for alk. Wow! What a difference. My normally low ph jumped and now I max out at 8.6. My 2 part consumption more than doubled. I’m dosing 350 ml a day of each and I still can’t get alk to 8.5 and calcium 420. I’m around 7.3 and 400 calcium measured by trident. I think I’m probably losing a fair bit of 2 part to precipitation. id Like to back my pH down to a high of 8.3. As I understand it I can use soda ash recipe mixed with the sodium hydroxide recipe. Can the same be done using sodium bicarbonate? Or does that throw the math off since it doesn’t contain the same alk level of the sodium hydroxide. my Dosing container is 5 gallons. I plan on 3 gallons of sodium hydroxide and 2 of either carbonate or bicarbonate. Lastly Amazon sells soda ash for pools. Would this be safe to use or should I stick with brs soda ash or diy. Pool soda ash on Amazon.